added pdf_phone_mapping code
added pdf_phone_mapping code

amaas/stanford-ctc,amaas/stanford-ctc,amaas/stanford-ctc,xiamike/stanford-ctc,xiamike/stanford-ctc,amaas/stanford-ctc,xiamike/stanford-ctc,xiamike/stanford-ctc,amaas/stanford-ctc,xiamike/stanford-ctc,amaas/stanford-ctc,xiamike/stanford-ctc